BACKGROUND The standard of care for plating displaced midshaft clavicle fractures has been 6 cortices of purchase on each side of the fracture. The use of locking plates and screws may afford equivalent biomechanical strength with fewer cortices of purchase on each side of the fracture. PURPOSE To compare the biomechanical and clinical performance of 3- versus 2-screw constructs for plating d...

This paper presents an experimental study on the pullout resistance of a newly improved reinforcement. The applied reinforcement was smooth steel strip with transverse members used to improve pullout-resistance problems and bearing were evaluated using results large-scale tests. evaluation result confirmed that about 33–66% total resistance, it had evenly distributed friction resistance. bond c...

Posterior root avulsions of the medial and lateral menisci result in decreased areas of tibiofemoral contact and increased tibiofemoral contact pressures. These avulsions may lead to the development of osteoarthritis. Therefore, two surgical techniques, the transtibial pullout repairand thesutureanchor repair, have recentlybeendeveloped to restore the native structure and function of the menisc...

PURPOSE Interference fit fixation of soft-tissue grafts has recently raised strong interest because it allows for anatomic graft fixation that may increase knee stability and graft isometry. Although clinical data show promising results, no data exist on how tendon healing progresses using this fixation. The purpose of the present study was to investigate anterior cruciate ligament (ACL) recons...

BACKGROUND All surgical screws can experience failure if the torsional, tensile, and flexion loads exerted on the screws are excessively high. The use of self-tapping screws (STS) results in higher insertion torques (IT) as these screws cut their own threads in the pilot hole drilled in the bone. In this study, the torque for inserting the STS into an osteoporotic bone block for different pilot...

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BACKGROUND AND PURPOSE Due to the known drawbacks of metal implants, new biomaterials for internal fracture fixation are attracting increasing interest, among them poly(lactic-co-glucolic) acids (PLGAs) and the recently developed silk-tenoin derived materials (STDMs). In accordance with the new philosophy of bio-derived biomaterials (BIODERIBIOs), I describe a novel innovative technology for us...

Four tool plunging paths including a one-time path and three step-by-step were designed to study the effects of on welded joint properties pinless friction stir spot welding (PFSSW). The appearance, cross-sectional microstructure, temperature, microhardness, tensile shear failure load PFSSW thin copper sheets under different explored. Furthermore, fracture modes joints analyzed. Studies showed ...

STUDY DESIGN A biomechanical spine model was used to evaluate the impact of screw design on screw-vertebra interface loading during simulated surgical corrections of adult scoliosis. OBJECTIVES To evaluate differences in screw-vertebra interface forces during adult scoliosis correction between favored angle (FA) screws with extension tabs and standard polyaxial screws while varying deformity ...